Urbanization in developing countries overrides catchment productivity in fueling inland water CO 2 emissions.

Authors :: Wang J
Zhou Y
Zhou L
Zhang Y
Qin B
Spencer RGM
Brookes JD
Jeppesen E
Weyhenmeyer GA
Wu F
Source :: Global change biology [Glob Chang Biol] 2023 Jan; Vol. 29 (1), pp. 1-4. Date of Electronic Publication: 2022 Oct 28.
Publication Year :: 2023
Abstract: We compiled a nationwide dataset of carbon dioxide (CO <subscript>2</subscript> ) efflux from 1405 measurements, and found that lakes, reservoirs, and rivers emit a total of 61.9 ± 55.3 TgC as CO <subscript>2</subscript> each year, corresponding to ~6.3% of the annual total national CO <subscript>2</subscript> emission in 2020. Our analysis showed that the presence of anthropogenic disturbances in catchments strongly influences the emission of CO <subscript>2</subscript> from these waters in the non-pristine areas, masking the catchment productivity effect on the emission of CO <subscript>2</subscript> . Our results highlight the need for adjusting climate change models for taking into account anthropogenic effects on CO <subscript>2</subscript> emissions from inland waters.<br /> (© 2022 John Wiley & Sons Ltd.)

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